Catherine Deneuve

Frankly, as much as I love to improvise, it hasn't been difficult to stick to the script on 'Mad Men.' The writing is so precise, and the story so carefully crafted, that I don't think there's room - or need - for ad libbing. I could never come up with dialogue as lovely as these writers do, anyway.

That's one of the difficult things of being an actor that I'm still not used to. You have to go, you have to show up at these places where you know nobody, and sometimes with really impressive, high stakes people like Roman Polanski.